Highway construction over-pass



`Iuly 2.6, 1932. B. H. FLYNN HIGHWAY CONSTRUCTION OVER-mss Filed June 5, 1931 5 Sheets-Sheet ooo ooo July 2.6, 1932. B. H. FLYNN 1,858,820

HiGHwAY coNsTRUcTior: OVER-PASS Filed June 5. 1931 5 Sheets-Sheet 2 July 26,1932. B, H, FLYNN 1,868,820

HIGHWAY CONSTRUCTION OVER-PASS Filed VJune 5. 1931 5 Sheets-Sheet 3 Patented July 26, 1932 UNiTEn STATES BENJAMIN n'. FLYiiN, or; niinirannniagjnonisrnnn In constructing concrete-'and other khighways with present-day equipment, the'grade is prepared in a great number of instances by a grading machine f extending throughout a the width ot said grade and traveling on side forms or track rails,-and theprepared grade is use as a roadway for the trucks whichhaul the highway materials back tothe paving machine or to the labor-employed for spreading Y said materials. Thegrading machinecompletely blocks thegrade when in voperation andas it is iinpracticable to Vswing said machine aside each timea truck mustfpass, and it is often' impossible to drive thej trucks "3 around it, it is customary tousethe grader only at night when no hauling ofmaterials is being done, and to swing-itftroin the grade f and leave it idle when hauling is to 1be re' sinned. Such procedure of. coursefnecessi- 90 tates not only the expense and inconvenience of employing both day and nightshits, but necessitates that sideyforms or 'rails be kept on hand in large quantitiesjfor they must Vbe laid such a distance as .to yallowV "ifi suiicient grading for a` days construction. Then too, even though the 'grading` machine may leave the grade in perfect condition,

the trucks soon badlyrutisaidgradezandimpart to it an undesirable varying density.

My invention aims -to makel provision whereby the trucks do not use the prepared grade but operate only in front ofthe grad-y ing machine, and it provides for carrying the highwaymaterials-from the trucksover said grading machine vwhile the latter-fremains on the grade, the materials being car ried on back to the paving machine or to' the construction gang after passage over the grader. Hence 'the grading :machine may be operated during theday as the job progresses, withoutinterfering with the delivery of materials, it is onlynecessary to keep a relatively few lengths of forms orrtrack rails ahead ot said grading machine, and thetruck f `will not injure the prepared grade., v

The provision for passing 4the materials over the grading-machine,` is; preferably mounted-on a frameprovid'ed `withwheels to run upon the above-named sidelforms or track rails,- but itis not essential thatsaid other lmachine or obstruction on the grade.l

with'the invention.

, Fig. 4. A Qn the grade, g the paving Inachine and the machine 1931. serial N6. 542,430'.V`

trame beffsupported.4- bythe track rails, or

side torms,asjit might in someinstances be provided with ground wheels or` caterpillar treads, or might bedirectly carried by the gradingmachine. Moreover, whilek the primary inten'tisfto convey the", construction materials over a grading machine, itis to ybe'understoed that the inventionis equally adaptable :tor conveying materials over: any

Y The provision for carrying the materials onfback fromy the over-passl and `the grading machine, to the paving machine orvthe, conf struction gang, preferably consists of amotor-driven'.fshuttlefcar yoperating uponv the 05 side forms or rails. Here again however, the car neednotbe supported by thesidetorms kor rails but couldbe Lprovidedwithground wheels orendle'sstreads of such nature as' to runA upon the finished Agrade .without injuring the latter.` y 'I'. 1 l One :practical embodiment of.y the. invenf tion hasbeenl illustrated inthe "accompanying drawings and will'berather-speciically -.described, with the lunderstanding however 15 used or --carrying the materials over the gradingmachineor other obstruction."Y Fign is a sectionalview on line 55of drawingsgiFig. l) yl() denotes a 19 diagrammatic showing of a grading `machine having wheels l1 running upon side forms or rails l2, andj-13 denotes a'iotary cutter of said'machine.10,for preparing the grade 114.? i uponwhich a highway is to be' constructed. :95.

Behind *the^ grading machine, I have vdiad grammatically illustratedthe skip 15 of a .conventional vpaving machine which J is supported in the usualfway upon theiinished 100 10 being of course movable along as their work progresses.

A portable frame 16 extends over, forwardly from and rearwardly from the machine 10 and is provided with an open top dump car 17 for conveying the construction materials from trucks in front of the frame 16, over the machine 10 to the rear end of said frame. A shuttle car 18 of motor driven nature, is either movable along the side forms or rails 12, or along the grade 14, between the machine 10 and the paving machine, said shuttle car having a dump body 19. lVhen the car 18 is positioned as seen in Fig. 1, the car 17 may discharge its load into the body 19, said car 17 having a rear gate 17 for this purpose. The car 18 is then used to convey the materials on back to the paving machine or to the construction gang. lVhen a paving machine is being used, the body 19 may well dump its load directly into the ship 15.

It will be observed that the trucks which discharge their loads into the conveying car 17 never reach the finished grade 14 and consequently cannot injure the same. Moreover in view of the fact that the material can be carried over the grading or other machine 10, both hauling and paving may be carried on during the day instead of grading at night suiiicient for a days run and paving the graded portion on the following day. Moreover, as the grading machine 10 may be advanced comparatively short distances at a time, when using the equipment herein provided, it is only necessary to keep comparatively few lengths of the side forms or rails 12 laid ahead of said machine and hence it is unnecessary to keep such a large number of said side forms or rails on hand.

The frame 16 embodies a front transverse truss 'frame 20, a. rear transverse truss frame 21, and an intermediate transverse truss frame 22, all of said frames having supporting wheels 23 which are flanged when they are to run upon side forms or rails 12. The front frame 2O is of arched form, allowing the car 17 to pass under its crown portion, but the frames 21 and 22 need not be so arched, as the car passes over them. These frames 21 and 22 are disposed to abut the front and rear of the machine 10, so that as said machine travels, the frame 16 will also travel.

The frames 20, 21 and 22 are tied together by longitudinal bars 23 and also by longi tudinal trackway 24, said trackway being secured upon the frames 21 and 22 and secured to the legs of the frame 20. This trackway embodies a horizontal portion 25 extending over the machine 10, a portion 26 which inclines to the front end of said portion 25, and a downturned portion 27, the latter having stops 28 at its ends. The trackway 24 also embodies a substantially horizontal front portion 29 pivoted at 30 to the lower end of the portion 26, for vertical swinging. The car 17 is provided with flanged wheels 31 traveling upon the traclway 24 and when this car is upon the portion 29 as seen in Figs. 1 and 5, trucks T may dump their loads into it. The loaded car 17, when moved rearwardly along the trackway 24 to the position shown in dotted lines in Fig. 1, may dump directly into the body 19 of the shuttle car 18.

The body 32 of the car 17, is preferably provided with an end gate 33 to swing downwardly onto the ground as seen in Figs. 1, 4 and 5, allowing the trucks to back partly into said body when dumping, as seen in Fig.

4. lVhen the body 32 receives the Weight 0f a truck and itsload, the pivoted front portion 29 of the trackway 24, of course depresses and the sills 32 of said body then rest solidly upon the ground and while the truck is dumping and holding the car 17, the rest of the machine may continue to advance. lVhen only the unloaded car is supported by the trackway portion 29, the latter is swung upwardly and the car 17 elevated clear of the ground, by means of appropriate Suspenders 34 which connect said portion 29 with the front truss frame 20, said Suspenders embodying springs 35. These springs of course stretch when the traclway portion 29 must depress onto the ground.

Any preferred means may be employed for moving the car 17 along the trackway 24. For this purpose, I have shown an arrangement of cables 36, sheaves 37 and motordriven drums 38, the frame 16 being provided at suitable points with transverse supporting rollers 39 for certain reaches of said cables. The foremost sheave may well be carried by a forwardly projecting arm 40 secured to transverse bars 41 embodied in the construction of the trackway 24.

When the frame 1G is constructed to travel upon side forms or rails 12, provision is preferably made for adjusting the wheels 23 along their axles 42, or for otherwise adjusting the frame to travel upon forms or rails spaced different distances apart, according to the width of the highway being constructed. The same is true of the shuttle car 18.

I claim 1. In highway construction equipment, a mobile machine which obstructs a highway grade to passageof road trucks, and means for receiving highway materials from road trucks in front of said machine and conveying said materials over the machine and on rearwardly beyond said machine to the required destination.

2. In highway construction equipment, the combination of a mobile machine which obstructs a highway grade to passage of trucks, a frame extending over, forwardly from and rearwardly from said mobile machine and means behind said machine adapted to receive t-lie materials from the rst named conveying means and to carry them on rearwardly beyond said vmachine to the required destination.

3. In highway construction equipment, the combination of a mobile machine which obstructs a highway grade to passage of trucks, a frame extending over, forwardly from and rearwardly from said mobile machine and adapted to be advanced therewith, conveying means mounted on said frame Jfor carrying highway materials from the front to the rear of said frame, and a shuttle car behind said machine adapte-d to receive the materials from said conveying means and to convey them on rearwardly to the required destination.

4. In highway construction equipment, the combination of parallel traclrrails, a machine movable upon said rails, a frame eX- tcnding over, forwardly from, and rearwardly from said machine and adapted to be advanced therewith, conveying means mounted on said frame for conveying materials from the front to the rear of said frame, and a shuttle car movable Aupon said rails behind said machine, said shuttle car being adapted to receive the materials from said conveying means and to carry them on rearwardly to the required destination.

5. In highway construction equipment, the combiu ation of parallel track rails, a machine having wheels upon said rails, a frame eX- tending over, forwardly from, and rearwardly from said machine, said frame having supporting wheels independent of the firstnamed wheels and engaging said rails to allow advance of the frame with the machine, conveying means mounted on said frame for conveying materials from the front to the rear of said frame, and a shuttle car movable upon said rails behind said machine, said shuttle car being adapted to receive the materials from said conveying means and to carry them on rearwardly to the required destination.

G. In highway construction equipment, a mobile frame adapted to extend over,:for

wardly from and rearwardly from a mobilel machine, and conveying means mounted on said frame for conveying materials from end to end of said frame. n

7. In highway construction equipment, a

wheeled frame adapted to extend over, for-` wardly from and readwardly from a wheeled machine, the wheels of said frame being independent of the wheels of the machine over which the frame extends, and conveying means mounted on said frame for conveying materials from end to end of said frame, said said I tra clrway `:tramehavinginea-ns ffor connecting it 'with the machine to [advance therewith.

8. In vhighway construction equipment, a

.iii'oblef'frame adapted to r`extend over, .foi-- 'wardly from and rearwardly from ajmachine,

and conveying meansmounted on said frame y lfor conveying materials from end to endy of said frame, said frame embodying twoy spaced transversemembers adapted to abut the front vand rear of the machine respectively,where` yby the frame and machine maybe bodily'ad- 'vanced. l

9. In highway construction equipment, a mobile jirameadapted to extend over, forwardly from yand rearwardly from' a ma-k chine, and conveying means'mounted onf-said V'frame for conveying materials from end to i end oic said frame, said frame embodying two spaced transverse truss structures adaptedto abut the front and rear of themachine fnl.

respectively, .whereby the frame and machine maybe bodily advanced. f 10. `In highwayconstructionequipment, a

lportable frame, a trackway mounted on said frame, said'traclrwayembodying an elevated portion, a portion inclined to said elevated portion and 'a substantially horizontal kportion leading to the low'erjend of said'inclined portion, andfconveyingmeans movable yalong for carrying materials from said horizontal trachway portion to the end said eleva-tedtrackway portion.- 11.l Inhighway construction equipment, a portable frame, a

trackway mounted/on said y irame, said trackway embodying anelevated portion, a .portion inclined to said elevated',i

portion, anda substantially horizontal `portion leadingto the lower end of said yinclined material may be dumped when the car isvon :said horizontalportion of the traclrway, and :means -fo-rvmoving said car from end to end of' ysaid trackway.v

12. In highway construction equipment, a"

f portion, aiduinp car movable along said trackv way and havingan opentop bodyk into which *les portion, and a substantially horizontal por- K tion pivoted for verticalswinging to the'` klower end of said inclined portion, a dump y ycar-movableV along said trackway .and having an open top bo-dy into which a'truck may `rdump vwhen lthe'car is on said horizontal portionoff the trackwav, means for moving said '1: ,car from end to end of said trackway, and

means for upwardly swinging said horizonvtal portion of said traclrway.

. 13. In highway construction equipment, av

portable frame, a trackway mounted on said frame, said trackway embodying an elevated portion, a portion inclined to said' elevated portion, and a substantially horizontal portion fpivoted for vertical swinging to the lower end of said inclined portion, a dump-'130 car movable along said trackway and having an open top bodv into which a truck may dump when the car is on said horizontal portion of the trackway, means for moving said car from end to end of said trackway, and spring means acting on said horizontal por* tion of said trackway and active to hold it slightly above the ground when suhficiently free of weight.

le. In highway Construction equipment, a portable frame, a traclway mounted on said frame, said trackway embodying an elevated portion, ay portion inclined to said elevated portion, and a substantially horizontal portion leading to the lower end of said inclined portion, a dump car movable along said trackway and havingl an open top body into which material may be dumped when the car is on said horizontal portion of the trackway, said body having an end gate adapted to swing downwardly onto the ground to allow backing of a truck partly into said body when said car is on said horizontal portion of the traclway, and means for moving said car from end to end of said trackway.

15. A. structure as speciiied in claim 14; said substantially horizontal portion of said trackway being` mounted for vertical Swinging, spring means exerting a normal upward force on said horizontal traclway portion to hold the latter and the dump car free from the ground and to permit depression thereof when a truck backs into said dump car, said dump car having supporting means to rest upon the ground when said car is under the weight of the truck, said supporting means projecting below said horizontal trackway portion and preventing the latter from contacting with the ground, thereby allowing the equipment to advance while the truck is dumping.

16. In highway construction equipment, a mobile machine, a ce 1 adapted to receive a load from a truck in advance of said mobile machine and. adapted to carry said load to a point behind said machine, andl guiding means for said car connected with said machine toV progress with the latter, said car having a portion adapted to rest upon the ground while receiving` a load from the truck, said guiding means being then adapted to move forwardly with the machine while the car is held against movement by the truck. ,b In testimony whereof I affix my signature. BENJAMIN Il. FLYNN. 

